crust

crust

An outer layer or coating formed by the drying of a bodily exudate such as pus or blood; a scab.

v.crusted, crusting, crusts

v.intr.

1. To become covered with a crust.

2. To harden into a crust.

crust′less adj.

crust

Etymology: L, crusta, shell

a solidified, hard outer layer formed by the drying of a body exudate, such as blood or pus, common in dermatological conditions such as eczema, impetigo, seborrhea, and favus and during the healing of burns and lesions; a scab. Also called crusta.

Crust

Cosmetic surgery A patch of dried protein-rich material that oozes from a hair graft, which sloughs off in 1–3 wksDermatology A layer of dried serum from an open woundSeismology The outer layer of the Earth’s surface

crust

(krŭst)

1. A hard outer layer or covering; cutaneous crusts are often formed by dried serum or pus on the surface of a ruptured blister or pustule.

crust

(krŭst)

1. A hard outer layer or covering; cutaneous crusts are often formed by dried serum or pus on the surface of a ruptured blister or pustule.

2. A scab.

[L. crusta]

crust,

n a hard-coating surface layer composed of coagulated tissue fluid and blood products mixed with epithelial and inflammatory cells covering a lesion formed by the rupture of a bulla, vesicle, or pustule.

crust

a formed outer layer, especially an outer layer of solid matter formed by drying of a bodily exudate or secretion. It may be serocellular or hemorrhagic.

palisading crust

there are alternating layers of cellular debris and exudate; typical of fungal infections of the skin and dermatophilosis.

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